By any chance does it work when you first connect it and drive around? Then if you leave the iPod connected and the car is off for a couple of hours and you come back and start the car, the iPod is DEAD?
If so, my iPod does the same thing in both my M3 and 135i!
It seems that in either car, if the iPod stays connected, but the car is off for a while then the iPod is dead. The fix is disconnect the iPod, turn the iPod on (it acts like a complete re-boot) and re-connect the cable. Works every time for me!
Maybe my iPod is defective, but I never have a problem using that same iPod outside of either car. Mind you, mine is an older Nano!
My guess it is an interface problem with the older iPods.
2011 E92 M3 Individual - 6 Speed Manual
2011.95 E90 M3 Alpine White - M-DCT
Last edited by E82Pilot; 08-23-2010 at 11:30 AM.